Method and apparatus for emulsifying oil solutions and the like



J. A. DE CEW.

METHOD AND APPARAIUS FOR EMULSIFYING OIL SOLUTIONS AND THE LIKE. AFPLIC AT|0N FILED MAY 1]. ins.

1,330, 174 Patented Feb. 10, I920.

' JUDSON A. DE CEW, OF MONLTREAL, QUEBEC, CANADA.

METHOD AND APPARATUS FOR'EMULSIFYING OIL SOLUTIONS AND THE LIKE.

of which the following is a full, clear, and

exact description.

This invention relates to an apparatus for emulsifying oils, sizing compounds, waxy or resinous materials and the like,

- and as an example may be used advan- 'tageously in the emulsification of such com-' pounds as have been described in my application, Serial No. 219,133, or app 1cat1on,

Ser. No. "195,607, or a plication, Ser. No.

172,035, or in fact in t e emulsification of any compounds diluted in aqueous solutions.

'The main object of my invention is to produce an apparatus WhICh will be simple ate, whic can be permanently adjuste or set to give a maximum efiicienc under working-conditions, and which will bring the materials to be'emulsified intosuch intimate. contact in fine streams under pressure with the aqueous solution, also'in fine streams under pressure, that the atomizing '-and emulsifying efiects will be made as nearly perfect as possible.

In carryin out my invention, I provide a suitable tan or reservoir adapted to con tain a proper quantity of hot 'water .under pressure and a second tank or reservoir adapted to contain the oily, waxy, resinous or other materials to' be emulsified, th'ese tanks being supplied with suitable pressure ga es, heating apparatus and outlet pipes. rom the outlet pipe, the material to be emulsified is adapted to be forced through a perforated screen orequivalent device against fine streams of the hot a ueone solution, which is also forced through a similar perforated screen in the pipe leading) from the hot watertank. The material.

e emulsified on the one hand and the hot solution on the other hand are thus forced from opposite directions in fine streams through the perforated screens to meet preferably at an angle of 180. The violent agitation caused from this contact, coupled with the breaking up of the materials in fine streams through the perforated aper- Specification of Letters Patent.

nsive to -manufacture and o er--' t-ers Patented Feb. 10, 1920.

Application flled llay 17,-1918. Serial No. 235,138.

tures roduces excellent atomizing and emulsi ying results. The diluted material may now be forced directly into water at a lowerv temperature or, in the case of certain materials, a secondary process may be employed, in which by. proper regulation of pressure the material may be forced through a third screen or equivalent device into cold water, thereby causing a further breaking, up of the particles with consequently more complete atomization and emulsification.

In the drawings which illustrate my invention;- v

' Figure 1 is a diagrammatic elevation showm the arrangement of the various units 0% the apparatus.

Fig. 2 shows an elevation of the screens or apertured plates.

Fig. 3 is a developed plan view of the apertured plates.

Referrin moreparticularly to the drawings, 5 deslgnates a tank or reservoir ada ted to contain a. warm aqueous solution, which may be either hot water or a hot alkaline solution, while 6. designates a tank adapted to contain the oily, waxy, resinous or other means for applying pressure thereto, which may be either in the form of compressed air or other nonsteam pressure from the'pi 'es 9. The pipes 9 are provided with suita le valves 10 to control the pressure and the tanks are further fprovided with pressure gagei211, and pre rably with thermome- The tanks 5 and 6 are further provided with outlet. pipes 13 having control valves 14. These pipes are preferably designed to meet from opposite sides to form an emulsi-- fyinf chamber 15 and, adjacent the chamber 15, nsert a perforated screen 16 for the materialto be emulsified and a similar perforated screen 17 for thehot aqueous solution. These screens 16 and 17, being ositloned at opposite sides of the emulsi ing chamber 15, permit the oily or other material'to be emulsified on the one hand and the hot aqueous solution on the other hand to come to ther under pressure in very fine streams, w ere atomization and emulsification take place simultaneously;

through a further atomizing process which.

is accomplished as follows :A third apertured screen 19 is placed in the outlet, pipe 20 from the chamber 15 and the pressure in the chamber 15, which can be measured by a suitable gage 21, then forces the solu-" tion through the reduced apertures in the screen 19, where it is further atomized and emulsified and. then forced into the cold watertanlr 18. It will be obvious that when the materials are put throu h in batches the amount of material in t e tank 6 must be vproportioned to the amount of-the aqueous solution in the tank 5. If the pressurels equal in both tanks, then. the number of apertures 22 in the plate 16 should be determined by thearea of the apertures 23 in theplate 17. Also, if it is desired to use'the third .apertured plate 19 and a certain pressure is required inthe chamber 15 to give the best results, then the number of aperr tures 24 in the plate 19 can be determined, as the back pressure in the chamber 15 will be regulatedby the rate of flowthrough the screen'19. v

-It will -'be obvious that a number of changes may be made-in the positioning or arrangement of the elements entering into my invention without departing from the s irit thereof.. It may for instance be pos-.

sible to eflect very good results by forcin the streamslagainst'each other at angles 0 less than 180?, but this would only involve with respect .to the emulsifying chamber. The main feature of my invention provides for an ap aratus in which the materials to be emulsi ed will bebrought into contact in very fine streams under pressure with the hot solutions, also in fine streams under pressure, to thereby efi'ect" simultaneous atomikation, saponification and emulsification wlthin an emulsifylng chamber, and

where necessary, to provide a further" atomizing and emulsifying step in the process beforelforci'ng the solutions into cold voirs into a common chamber, unequally apertured plates adjacent opposite sides of said chamber,-a third apertured plate forming the outlet of said chamber having as many apertures as 'both of .said apertured plates, and means for creating pressure with in said chamber. whereb the contents of the' chamber are forced in the outlet plate.

72. A recess of emulsifying oil solutions and the ike and waterv to form a stable emulsion, which consists in heating the oil and e streams through water separately, forcing the hot oil and water to impact against each other through atomizin orifices by means of ressure greater t anone atmosphere, toma e a fine emulsion; and then discharging the emulsion into cold wateri 3, A rocess of emulsifying oil solutions andthe ike and water to form a stable emulsion, which consists in heating the oil and water separately, forcing the hot oil and water to impact against each other through atomizing orifices by means of pressure gzeater thanione atmosphere to make a a slightly dlfierent positioning of the pipes In hand.

JUDSON A. ,DE CEW. 

